Supply bobbin mount for spinning machines, etc.



Aug. 5, 1958 2,846,163

SUPPLY BOBBIN MOUNT FOR SPINNING MACHINES, ETC Filed Feb. 25, 1954 RC. STALKER 2 Sheets-Sheet 1 INVENTOR Roberi a 15' izlifer 0% ATTORNEY Aug. 5, 1958 R. c. STALKER 2,846,163

SUPPLY BOBBIN MOUNT FOR SPINNING MACHINES, ETC

Filed Feb. '25, 1954 2 Sheets-Sheet 2 WFIGZZ INVENTOR B028); 63 5 id Z 16) A'ITORNEY' United States Patent SUPPLY BOBBIN MOUNT FOR SPINNING MACHINES, ETC.

My invention relates to improved support means for thread supply bobbins employed in the textile industry, and particularly in connection with spinning machine for the supply of thread to the doubling or twister units.

Heretofore much time has been lost in replacing empty bobbins. For instance such bobbins have heretofore been supported on individual roving sticks whose ends are removably seated in opposed holes of superjacent parallel rails of a spinning machine. Since each spinning machine involves the use of a large number of thread supplying bobbins, the aggregate time consumed in changing bobbins in the course of a day is considerable.

It is therefore the primary object of the invention to provide novel bobbin and/or supporting means which can not only be carried by one machine rail or frame member but which admits of tilting of the bobbin so as to facilitate bobbin changing.

The invention'also resides in certain novel features of construction, combination and arrangement of the various parts, and in modes of operation, all of which will be readily understood and appreciated by those versed in the art, upon reference to the accompanying drawings in connection with the following descriptive matter.

It is to be understood that the drawings disclose a now preferred form of the invention. However, it will be obvious that the inventice concept is susceptible of other mechanical expression within the spirit and scope of the subject matter claimed hereinafter.

In the drawings, wherein the same reference characters have been used to designate the same parts throughout the several views Figure 1 is a perspective view partly broken and partly in section illustrating superiacent frame rails of a spinning machine and illustrating one of my supply bobbin mounts;

Figure 2 is a side elevational of one of the mounts;

Figure 3 is a bottom plan view of the bobbin stool mount or base, one leaf of the hinge being shown in end elevation;

Figure 4 is a top plan view of the device as shown in Figure 2;

Figure 5 is a cross sectional view taken on the line 5-5 of Figure 1;

Figure 6 is a sectional view taken on the line 66 of Figure 2;

Figure 7 is a group perspective view of the bobbin stool and its supporting mount, certain parts being broken away and shown in section; and

Fig. 8 is a view partly broken and partly in section showing a modification which obviates necessity for a tiltable support.

Referring to the drawings by reference characters numerals 10 and 11 designate superjaceut frame rails of a conventional spinning machine, for instance, these rails 10, 11 carrying a plurality of supply bobbins such as 12. The thread from several of these bobbins 12 is drawn off by each of the doubling or twisting units of the spinning or other machine to which such bobbins are applied.

iice

The bobbins 12 are arranged in spaced series longitudinally of the rails 10 and 11 but only one bobbin 12 has been illustrated in the drawings.

The rails 10, 11 provide the co-extensive depending side flanges 10a, 11a, respectively and a conventional bobbin 12 of tubular form is illustrated in Figure l as having wound thereon the package 13 of thread or yarn to be drawn off as aforementioned in the operation of the usual twister mechanism or the like (not shown) embodied in spinning machines.

As aforenoted stools or mounts are provided in spaced series lengthwise of the frame member 11 and are carried thereby to rotatably support the bobbins 12.

Each stool or bobbin mount comprises the substantially disk form base 14 having the endless depending flange 14a. A hinge 16 pivotally secures the stool base 14 to the top of the frame rail 11 as indicated in Figure l. The hinge 16 has the pintle 17 connecting the hinge leaves 17a, 17b, the former being secured to the frame rail 11 by rivets or the like 18 and the latter by rivets 19 as indicated to the mount 14.

The stool base 14 has the concentric upstanding post 15 whose lower end is rigidly secured to the stool base as indicated at 15a, or in any other preferred fashion.

In carrying out the invention I show a novel form of actual bobbin supporting stool 20 in that it provides the outwardly bulged or enlarged upper and lower portions 20a, 20b, respectively, and the intermediate concavedly curved portion. However, as to the Figs. l-7 form of the invention, stool 20 may be otherwise shaped,

- as will be understood when the modification of Figure 8 is described.

Still referring to Figure 1, the lower end of the bobbin 12 is supported on the endless outwardly projecting shoulder 20x of the spool form stool 20, per se, which shoulder is provided by the endless, circumferential bottom flange 20c.

The rotatable bobbin-supporting stool 20 has an opening from its lower end, the concentric bore 21 which receives the upstanding post or pin 15 of stool base 14 for rotatably mounting said bobbin stool above base.

14. The bore .21 is closed at its inner end and its length is such as to dispose the bobbin carrying stool 20 in spaced relationship above the top of the stool base 14 as aforementioned and is shown in Figure 1.

Means is provided for detachably securing each of the bobbin stools 20 on the related upstanding post 15 and this will be now described, and in the singular, since onlyone unit is illustrated. a a

' As indicated in Figure 1, but better shown in the group perspective view Figure 7, the bottom of the bobbin supporting stool 20 has the circular concentric recess 22 which surrounds a counter bore 24 and the central postreceiving bore 21. A retainer disk 25 is adapted to be received in the stool recess 22 to bear against the annular bottom or shoulder 22b thereof as indicated in Figure 1 and it has the central post-receiving hole 26. i

This retainer disk 25 is secured in place by a resilient splitting 29 which is sprung into the groove 23 of the inner wall of the recess 22. V

The wall portion 22a of the recess 22 which lies outwardly of the groove 23 is preferably tapered inwardly in the direction of the center of the stool 20, as shown, so as to better assure against dislodgment of said locking ring 29 from groove 23. p

The retaining disk 25, is secured in stool recess 22 and against the annular shoulder 22a by means of a cross pin 28 which is carried by the upstanding post 15 of the Thereafter the bobbin supporting stool with the rigidly carried retaining disk ean be given a quarter turn to disalign the pin 28 and slot portions 27 as indicated in Figure 5. Thus the parts will be held assembled.

With the parts assembled as in Figure 1 it will be noted that the post-carried pin '28 is received in the counter bore or recess 24 'of the bobbin carrying stool 20. In the assembled position 'of the parts as shown in Figure 1 the post-carried cross pin 28 will be closely adjacent theretaining disk 25 so as to prevent objectionable outward shifting of the bobbin 12 away from the postcarrying stool base 14.

When the thread supply 13 of a particular bobbin 12 has been exhausted by the related spinning unit or the like (not shown) it is 'a simple matter to remove the empty bobbin 12 and replace it with a full one. All that is necessary to be done is to rock the empty bobbin, its stool 20 and base or mount '14, as a unit to the dotted line position shown -in Figure 1. Then the empty bobbin 12 can be easily pulled off of its stool 20 and replaced by a full bobbin whereupon the stool 20 and its base 14 can be rocked back to the full line position shown in Figure 1. It is particularly to be noted that the downturned flange portion 14a of the stool base 14 is supported by the top of the frame rail 12 in normal operation of the withdrawal of thread 13 from a bobbin by the spinning or other units.

Although the invention of Figures 1-7, inclusive, discloses the stool 20 as having the tiltable base 14, Figure 8 shows that the latter may be dispensed with when the stool 20 is centrally reducedin cross section and curved between its ends 20a, 2% as shown.

Thus, referring to the modification illustrated in Figure 8, the stool 30, which is shaped like the stool 20 of Figure 1 has the knob form upper end 301: and the widened lower end 30b which are separated by the circumferentially extending concave curve. The lower end of the stool 30 is fixed to the base 31 which is supported by the upstanding central pin 32. Pin 32 has the stop 32a which is flush with the top of rail 33 and its pointed lower end takes in the wood filler 34 which is secured between the flanges of rail 33.

As illustrated in Fig. 8, the concaved circumferential curve of the stool 30 permits the bobbin 12 to be tilted or rocked sideward as it is being removed.

Although the stool base 14 of Fig. 1 allows a greater degree of bobbin tilting than is permitted when such base is eliminated as in Figure 8, yet most operators will soon acquire the knack of removing bobbins expeditiously from the fixed stool of Figure 8.

Having thus described my invention what I claim is:

1. The combination with a fixed portion of a thread spinning machine or the like; of a rotatable support for a thread supply bobbin, a mount for said support, tiltable means adjacent one edge of said mount securing said mount to said fixed machine portion, and said mount normally supported by the latter under the action of gravity to dispose said support in its untilted position when said machine is in operation.

2. Thecombination set forth in claim 1 and said rotatable support comprising a stool insertable in the lower end of a tubular bobbin and providing a seating flange for the latter, said mount comprising a base member, a post rising from the base member, said stool having a bearing bore opening from its lower end and receiving said post for mounting said stool for rotation about the latter, and the length of the bearing bore of said stool being less than the length of post, whereby to space the lower end of said stool above said base member, said stool having a bottom recess surrounding said hearing bore, a plate element insertable in said stool recess and having a. hole through which said post freely extends, there being slots opening into said hole from opposite directions, a cross pin extending through said post and 4 having its projecting end portions passable through said plate slots when aligned therewith, said plate being shiftable to cause said projecting pin ends to overlie the inner surface of said plate to prevent separation of the post and pin, and shiftable recess-wall-supported means retaining said plate in said recess.

3. The combination set forth in claim 1 and said mount including a plate having an endless downturned marginal flange, said t-ilt'able means comprising a hinge providing two pintle-connected leaves, one leaf detachably secured to said mount adjacent one edge of the latter and the other leaf to said fixed machine portion, the outer sur face of which -'latte'r leaf is normally disposable substantially in plane with the lower edge of said downturned marginal mount plate flange.

4. A support for tubular thread-carrying bobbins of textile machinery and the like comprising in combination, a rotatable bobbin support, a mount for said bobbin support, hinge means carried by said mount, said hinge means having a portion attachable to a supporting member, said rotatable support comprising a stool insertable in the lower end of a tubular bobbin and providing a seating flange for the latter, said mount comprising a base member, a post rising from the base member, said stool having a bearing bore opening from its lower end and receiving said post for mounting said stool for rotation about the latter, and the length of the bearing bore of said stool being less than the length of post, whereby to space the lower end of said stool above said base member, said stool having a bottom recess surrounding said bearing bore, a plate element insertable in said stool recess and having a hole through which saidpost freely extends, there being slots in said plate opening into said hole from opposite directions, a cross .pin extending through said post and having its projecting end portions passable through said plate slots when aligned therewith, said plate being shiftable to cause said projecting pin ends to overlie the inner surface of said plate to prevent separation of the post and pin, and shiftable recess-wa'll supported means retaining said plate in said recess.

5. The combination with a fixed portion of a thread spinning machine or the like employing stitf tubular bobbins; of a rotatable bobbin stool, said stool having a bobbin-supporting base flange and functionally integral bobbin-engaging upper and lower ortions, the intermediate portion of the bobbin stool bein deeply and tancavedly curved from the bobbin-engaging lower poi-lien to the bobbin-engaging upper portion and throughout its circumference, whereby to provide a riding surface for the lower interior edge of the bobbin so as to admit oi the bobbin being tilted when Being placed upon the steel or removed therefrom while disengaged from the lower portion or said stool.

6. A bobbin-supporting stool for thread spinning niachines or the like, said stool having a bobbin-supporting base flange and a central upstanding bearing recess,the upper end of said stool providing a knob form bobbineng'aging portion and the portion of said stool adjacent said base flange providing a widened bobbin=stipporting portion, and the entire length-of said stool between said bobbin-engaging portions being deeply and coticavedly c'u'r'ved throughout its circumference so as to admit of tilting of bobbins of stiff material when placed upon or removed from said stool and while disengaged from the portion of said stool which is adj'a'cent the base flange.

7. The combination set forth in claim 1 and said rotatable support comprising a stool insertable in the lower end of a tubular bobbin and providing a seating flange for the latter, said mount comprising a base mem er, a

post rising from the base member, said stool having a bearing bore opening from its lower end and receiving said post for mounting said stool for rotation about the latter, said stool having a bottom recess surrounding Said bearing bore, a plate element insertable in said stool recess and having a hole through which said post freely extends, there being slots opening into said hole from opposite directions, a cross pin extending through said post and having its projecting ends passable through said plate slots when aligned therewith, said plate and post being relatively shiftable to cause said projecting pin ends to overly the inner surface of said plate to prevent separation of the post and pin, and means securing said plate in recess closing position.

References Cited in the file of this patent UNITED STATES PATENTS Kretzschmer July 10, 1917 Pickard July 2, 1918 Gollong May 15, 1934 Graham Apr. 22, 1941 FOREIGN PATENTS Great Britain Aug. 26, 1936 

